Thermal annealing of K+–Na+ ion-exchanged waveguides
Anno: 1995
Autori: Giorgetti E., Grando D., Palchetti L., Sottini S.
Affiliazione autori: Istituto di Ricerca sulle Onde Elettromagnetiche, Consiglio Nazionale delle Richerche, Via Panciatichi 64, Firenze, 50127, Italy
Abstract: The process of thermal annealing of K+–Na+ ion-exchanged waveguides in soda lime glass is characterized and compared with a simple theoretical model. The discrepancies between theory and experiments in the case of initially thick guides disappear if the existence of a stress-induced contribution to the refractive index is assumed that is not proportional to the concentration of the doping ions. The results obtained for initially thin guides are exploited for the design of annealed single-mode channel waveguides: 0.4-dB coupling losses with commercial single-mode fibers at ? 1.321 mm were measured.
Giornale/Rivista: OPTICS LETTERS
Volume: 20 (12) Da Pagina: 1374 A: 1376
Parole chiavi: Channel waveguides; GlassDOI: 10.1364/OL.20.001374Citazioni: 8dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-28Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui